1. provide examples of variables that could have that type of relationship written below. Make sure to justify your choices

• Cause and effect
• Common cause

2 using the table answer the following

Year Total non-resident travellers in June, countries other than the United States 1990 396,470 1991 388,121 1992 380,496 1993 402,499 1994 465,403 1995 522,812 1996 609,604 1997 552,997 1998 520,995 1999 523,132 2000 564,591 2001 542,552 2002 449,621 2003 361.499 2004 486,164 2005 536,447 2006 528,894 2007 559,837 2008 574,575 2009 481,684 2010 535,815 2011 544,175 2012 551,890 2013 562, 198 2014 619,889 2015 652,416 2016 730,664 2017 797,242 2018 810,589 2019 889,076 2020 19,917 2021 34,493